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Preparation of Salmonella typhimurium VNP20009 conjugated with imidazole-zeolite framework and its anti-tumor effect
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Xiao-fang ZHONG1, *, Xiao-yu DENG1, Shuai LIU2
Acta Pharmaceutica Sinica | 2024, 59(6) : 1841 - 1846
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Acta Pharmaceutica Sinica | 2024, 59(6): 1841-1846
Original Articles
Preparation of Salmonella typhimurium VNP20009 conjugated with imidazole-zeolite framework and its anti-tumor effect
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Xiao-fang ZHONG1, *, Xiao-yu DENG1, Shuai LIU2
Affiliations
  • 1. School of Pharmacy, Guangdong Medical University, Dongguan 523109, China
  • 2. Huangjiang Hospotial, Dongguan 523750, China
Published: 2024-06-12 doi: 10.16438/j.0513-4870.2024-0045
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In this study, inspired by biomimetic mineralization process, we have developed imidazole-zeolite framework (ZIF-8) conjugated VNP20009, and chemotherapy drug doxorubicin hydrochloride (DOX) was encapsulated to obtain ZD@VNP. The morphology and the combination of ZIF-8 and VNP was characterized by transmission electron microscopy and laser confocal microscopy. Fluorescence spectrophotometry was used to examine the encapsulation rate and in vitro release rate of DOX. CCK-8 and FDA/PI cell viability staining experiments were used to evaluate the ability of ZD@VNP to inhibit cell proliferation. Melanoma mouse model was established to investigate the effect of ZD@VNP to inhibit tumor growth. It was shown that ZIF-8 was evenly bounded to the surface of VNP20009, and laser confocal microscopy results also confirm the combination of ZIF-8 with VNP in ZD@VNP. The encapsulation rate of DOX in ZD@VNP was calculated to be 85.7% ± 3.7%, and the release of DOX under the buffer at pH 6.0 was significantly higher than that of pH 7.4. ZD@VNP treatment resulted in a greater inhibitory effect on B16F10 cell proliferation compared to DOX treatment. Animal experiment results showed that compared with VNP+DOX, ZD@VNP treatment can significantly inhibit the growth of B16F10 tumors in C57BL/6 mice and prolonged survival (all animal experiments were approved by the Institutional Animal Care and Ethics Committee Guangdong Medical University, No. GDMU-2023-2518). In summary, ZD@VNP was prepared through a facile, one-step method, which can significantly enhance the proliferation inhibitory effect of DOX to inhibit tumor growth and prolong survival. Our results demonstrate that ZD@VNP has great application prospects in the field of drug delivery.

imidazole-zeolite framework  /  Salmonella VNP20009  /  biomimetic mineralization  /  proliferation  /  B16F10 cell
Xiao-fang ZHONG, Xiao-yu DENG, Shuai LIU. Preparation of Salmonella typhimurium VNP20009 conjugated with imidazole-zeolite framework and its anti-tumor effect[J]. Acta Pharmaceutica Sinica, 2024 , 59 (6) : 1841 -1846 . DOI: 10.16438/j.0513-4870.2024-0045
Year 2024 volume 59 Issue 6
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Article Info
doi: 10.16438/j.0513-4870.2024-0045
  • Receive Date:2024-01-16
  • Online Date:2025-11-26
  • Published:2024-06-12
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  • Received:2024-01-16
  • Revised:2024-05-09
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    1. School of Pharmacy, Guangdong Medical University, Dongguan 523109, China
    2. Huangjiang Hospotial, Dongguan 523750, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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